Agricultural implement



Dec. 28, 1943. c. w. MOTT AGRICULTURAL IMPLEMENT s Sheets-Sheet 2 FiledJan. 27, 1941 E o HHHHMIHHHHH Hun d c c H c g g 3 3% 5 Mi 8 3 m in mmm[numb/'2 Carl [1! 7720212 fqy Pawm) PM Dec. 28, 1943.

c. w/MoT-r 2,337,763

AGRICULTURAL IMPLEMENT 3 Sheets-Sheet 3 Filed Jan. 27, 1941- 1 4 tobrace one of the'plows with respect to the Patented Dec. 28, 1943 UNITEDSTATES PATENT OFFICE 2,337,763 AGRICULTURAL IMPLEMENT Carl W. Mott, LaGrange, Ill., assignor to International Harvester Company, a corporationof New Jersey Application January 21 1941, Serial No. 376 085- 6 Claims,(01. 97 -47) 'used with tractors which are relatively narrow,

there is a problem of providing some means for preventing entanglementor locking of the plows with one another. This is particularly true whenboth plows are being carriedin transport position and wherein th plowsare of a type adapted to have substantially free lateral movement. It isdesirable, therefore, that some means be provided other. When one of theplows is in its working position there is some problem of maintainingthe-plow which is then in transport position from interfering with theoperation of the plow which is doing the p owing. Therefore, it is alsodesirable that mea s be provided to lock the plow which is in transportposition to prevent its interfering with the other plow as well as whenit is in the-plowing position.

It is, therefore, an object of the present invention to provide a simplemeans for maintaining a pair of working tools or alternate'plowstructures in spaced relationship at all timesgn order to prevententanglement of the same.

It is another objectof the invention to provide such means forpreventing entanglement of laterally spaced working tools, which isentirely independent of the tractor and may be removed with theimplement attachment when the sameis disconnected from the tractor.

It is another object of the invention to provide means for positivelylocking the working tools in theirtransport position against both inwardand outward lateral movement with respect to each other and with respectto the tool-supporting means. a

According to the present invention there has been providedmeans'reacting between the two working tools which is adapted forcausing the tool being moved .from one position to another" cal positionand this same means serving to main.v

tain the working tools in their laterally spaced position. This reactingmeans takes the form s the working tools are both raised the reacting ofa telescoping rod arrangement adapted to withstand lateral thrust of theworking tool due to its weight and is connected between the tool beamsat a location removed from the point of pivotal connection of them totheforward body portion of the tractor. The reacting means can beadjusted to different lengths depending upon the lateral adjustment ofthe working tools with respect to the tractor and upon the size of thei0 furrow cut during the plowing operation. When it is desired topositively lock the working tools against lateral outward movement, .useis made of the usual lateral limiting or stop means associated with eachof the working tools. An adiustment is made in the reacting means suchthat when means will force the same against their'respective stop means,thereby positively maintaining the working tools against movement withrespect to themselves and with respect to the tractor.

For other objects and for a better understanding of theinvention,'reference may be had to the following detailed descriptiontaken in connection with the accompanying drawings, in which:

Figure 1 is an elevational view of the rear portion of a tractor ortool-supporting means which has connected thereto alternate plowingattachments embodying the features of the present invention;

lustrating the relative positions of the lifting means when one plow isin its transport position or when the other plow is in its plowingposition; and

Figure 5 is a detail view of the reacting means.

Referring now particularly toFigures 1 and 2,

there is shown a tractor orrtool-supporting means l0 having a forwardbody portion II and a rear axle structure I! supported bythe rear drivewheels l3. Connectedtothe forwardly extending body portion is adepending bracket structure indicated generally at l4 having a rear-.

wardly extending bail I5 which may be located in any. vertical positiondepending upon the adjustment of the strap IS with the forwardlyextending body portion i I. The depending structure I4 is supportedagainst rearward movement by the forwardly extending bracing members [1connected at their rear ends to the rear axle structure, asindicatedatl8.

Connected on the rear of therear axle structure i2 is a rearwardlyoverhanging supporting structure indicated generally at I! and adaptedto pivotally support a pair of raising and lowering arrangements ormeans 20 on their rearward end as indicated at 2|. Each of these raisingand lowering means 2! may be caused to rotate about a pivotal connectionby a manual lever 22 working over a quadrant 23, both of which aremounted on the tractor at a location forwardly of the rear axlestructure and near to an operator's station 24. Each lever 22 isconnected by the lifting means 2|] will rotate about its pivotalconnection 2| in a counter-clockwise direction.

To assist in the rearward movement of the lever to efl'ect 9. raising orclockwise movement of the lifting means, there is provided a helperspring 21,

Pivotally connected to the ball [5 are a pair of alternate plowstructures indicated generally at 3|] and.3|. Each plow structureincludes a tool beam 32 and a working tool or plow bottom 33. The plowbottom, located onthe right-hand side of the tractor when in itsground-working ally spaced relationship with respect to each other inorder to avoid entanglement of the same as they are being transported orwhen in plowing position as might readily occur with plow structuresconnected to tractors for relatively free lateral movement. As theright-hand plow bottom is lowered toits plowing position, shown indotted lines at 4| in Figures 3 and 4, it will be noted that theright-hand plow structure will tend to aline itself with the hitchconnection on the bail IS, the reacting means 43 will merely be causedtorotate about its pivotal connection 42 with the left-hand structure 3|and will still be effective for the purpose of maintaining the plowstructure 3| laterally spaced from the plow structure 30. The plowstructure 3| will remain substantially in its regular transport positionand diverging from a center line between the two,

plow structures in amount similar to that which the diverged plowstructures were being held in their transport position. The plowstructure 3| is held in this position by the reacting meanslil;

' plowing position to a transport position, the

position, will throw the dirt opposite to the plow bottom located on theopposite side of the tractor. The connection of the respective plowstructure to be presently described will apply equally for both of theplow' structures.

The tool beam 32 is connected to the trans- I versely' extending portionof. the bail I! by means of a swivel link 3| and is retained in itslaterally adiusted position on the ball by means of a set collar 35.This swivel link connection permits lateral pivotal movement of the beam32 as well as vertical pivotal movement of the same.

The rear ends of the plow beams 32 are respectively connected to the riht-hand and left-hand lifting means 20. The lifting means 23 alsoinelude two spaced downwardly extending link structures 36 which areconnected at their upper ends to rearwardly extending arms 31, forming apart of the lifting means 23 for lateral and for fore and aft swingingmovement as indicated at 33. The lowerends of the link structures 33 aresimilarly connected to the beams 32 by means of a transversely extendingstructure 33 rigid with the'beam 32. It should now be apparent that eachof the alternate right-hand and lefthand plow. structures are connectedto the tractor for both lateral and vertical movement with respectthereto. It should also now be apparent.

that there has been provided a separate lifting means for each of therespective right-hand and the 'plow structures are in their transportposition, they will be definitely held in diverging relationship,forwardly and toward the rear of' the tractor, by a reacting means I.interconnected between the beams of the respective plowstruc-- Thisreacting means serves as a brace to always maintain the, plow structureswhen in both their transport and plowing positions, in latersame will becaused to move laterally outwardly and away from the plow structure 3|by the reacting means 40, the plow structure 3|! thereby reactingagainst the plow structure 3|. Thus, it should be apparent that the plowstructure 3| serves not only for permitting inward lateral movement ofthe plow structure 30 but also causes lateral outward movement of theplow structure 3|.

Referring now particularly to Figure 4, there is shown a vertical viewof the plow beams as viewed from the rear of the tractor showing therelative position of the parts of the lifting means when both plowstructures are raised and showing in dotted lines the position of theparts of one of the lifting means when the plow structure 33 is loweredinto plowing position. It will be noted that the reacting means 43 willbe inclined downwardly to the right and will thereby support the weightof the plow structure 3|. While illustrations have been made showingonly the'rlghthand plow structure in its ground-working pom detail'thestructure of the reacting means 43,- its connection 42 with theleft-hand member or plow structure. 3|, and its connection 43 with theright-hand plow structure-3|. The reactin means itselfincludes a pair oftelescoping parts M and I5 ind a set collar 45 for .holding thetelescoping parts in their adjusted. position. The

parts may be either extended or collapsed as desired depending upon theamount of divergence of the plow structures 33 and 3|that is desired intheir transport position or when one is in transport and the' other isin its plowing position. It

will also be apparent that an adjustment may be made of the telescopingparts ll and II for diiierent settings of the plow structures on theball I! depending upon the width of cut and also depending on the typeor width of the plow bottoms33beingused.

means being connected to said tools at respective Referring nowparticularly to Figure 4, it will be noted that there has been providedwith each of .the raising and lowering means 20, a laterally extendinglimiting or stop means 48 diagonally arranged between the linkstructures 36. With one of the link structures this diagonal means I8 ismerely pivotallyconnected, as indicated at 49, while with the other linkstructure it has a lost-motion connection as indicated at 50. Thislost-motion connection includes a 'slot through which extends a. pin 52rigid on the link structure 36. This slot 5i is-of such length as tonormally permita limited amount of lateral movement of the plowstructure when the plow structure is in its ground position but is stillonly of suflicie'nt length as to have its end wall engaged with the pin52 to prevent further lateral outward movement.

It should be apparent that, whenthe reacting means 40 is adjusted sothat when both of the working tools have been raised to their transportposition, the respective pins 52 will have been moved into engagementwith the ends of the slot 5|. When this has taken place the work- 'ipgtools will be held against further lateral outward-movementand againstinward movement with respect to each other, whereby the tools will bepositively lockedJvith respect to each other and with respect to thetractor.

It should now be apparent that a means has been provided for maintaininglaterally spaced plow structures which are respectively connected to atractor for independent lateral movement, 7

which is of a simple construction and which is arranged to be removablefrom the tractor with the implement attachment.

.While variouschanges may be made in the detail construction," itshallbe understood that such 4 changes shall be within the spirit and scopeof pointsthat are raisedvand lowered therewith so said thrust means istilted to change the lateral spacing of said points and hence of thetools upon change in the relative elevation of said tools, and thecenter-line distance between said points being such that when the toolsare at substantially the same elevation in transport-the lateraldistance between said points is greatenough to cause the outwardprojection of each tool against its respective stop means to lock thetools against lateral movement. I

3. In combination, a tractor, right-hand and left-hand plow structuresconnected to the tractor. for alternate operation, each of the plowstruc tures being connected to thetractor for vertical movement fromtheir lowered plowint p sitionito a-raised transport position and alsobeing big of lateral movement, the 'trans'portjmsitiomd each plowstructure being laterally outwardagith respect to its plowing position,means'io'rfl ising' the respective plow structures from thelrl lqw' inposition to their transport position, -thrust-": exerting means carriedby and extending between the plow-structures for maintaining the. plowstructure in the-transport position laterally'removed from the plowstructure in its plowingpcstion, and said thrust-exerting means by, itsreaction against the raised plow structure in trans- .port serving toshift the lowered plow structure laterally outwardly into its transportposition upon the same being raised.

4. In combination, a tractor, left-hand plow structureslocated-intransversely spaced relationship with respect? to each other foralternate operation, separate support upon the tractor for therespective plowstruc-p plow structures, and generally rigid thrustmeansextending and reacting between said plow structures to space the samelaterally apart a distance constituting a direct function of theirapproach to the same elevation, and the extent or said thrust meanstransversely of the plow structures. being sufllcient to laterallyspacesaid plow structures far enough when they are both in the raisedstructures to permit said lateral movement thereof, each of said plowstructures assuming an inwardly disposed position when in its respectiveplowing position, and a thrust structure pivotally connected to andbetween said plow struc-. tures to maintain the same transverselyseparesist further inward movement of said other in the plowingposition.

2. In combination, tool-supporting means,

working tools located in transverselyspace'd rela tionship with respectto each othe separate means for connecting the respectiv' working toolsto the tool-supporting means for independtransport position that theyare projectednutwardly against their respective stop means,- whereby theplow structures will be-;D !tively' locked vagainst lateralmovement'withrespectto the tractor.

5'. In a vehicular plowing implements :fram'e. 7 right-hand andleft-hand plow. structures havin forward portions connected tosaid frameand tween a plowing position and also facilitating lateral extendingbackwardly with respect thereto, the connection or each plow structurefacilitating 'verticalmovement. of rear portions thereof be-; "raisedtransport position and a'lowered movement of such rear portions ofsaidstructures, means ror independently raising and lowering said plowstructuro grea'r portions, thrust ent vertical and lateral movement,means forraising and lowering the working tools; stop means associatedwith each of the connecting means for limiting lateral outward movement,

and thrust means carried by and reacting.between the' working tools formaintaining the working tools laterally separated, said thrust meanscarried between said rear portions for occupying a generallyperpendicular relation therebetween when they are in the :transportposition and being of suflicient length to thereby maintain said plowstructures in a backwardly diverging arrangement, but said thrust meanschangingrto an inclined position between said plow structures pursuantto the lowering of either rightahand 3 and inwardly or outwardly fromtheir intermediate positions and also being operable to raise and lowersaid plowing structures, means for indesuch parallelism, and saidinclined thrust means t then being reactive upwardly and outwardlyagainst the plow structure in transport to oppose said reactive-force ofthe earth. U 6. In a vehicular plowing implement, a frame,

right-hand and,

left-hand plow-supporting means upon and spaced transversely of theframe, right-hand and left-hand plow structures respectively on saidsupporting means and tend- 'ing to occupy respective intermediatepositions transversely of the frame, said plowsupporting means beingtransversely movable in opposite directions to move the plowingstructures either 'pendently so operating the plow-supporting meanswhereby the plow structures can be separately lowered into a plowingposition or both raised into a transport. position, generally rigidthrust means extending and reacting between the plow structures to urgeboth outwardly, said thrust means being of suflicient length to force 1[each of-the plowing structures outwardly from its said intermediateposition when they are at substantially the same elevation in theirtransport positions, and stop means respectively associated,

with said plow structures to prevent'further outward movement thereofwhile in. the transport position and to thus cooperate with said thrustmeans in trammeling side sway of 'the plow structures. v

I CARL W. MOTT.

